TITAN HD USER MANUAL
91
9-1 Introduction to Radiometry
The basic reason for employing image processing programs when analyzing IR
images is to have a fast and comprehensive means to determine the information
content of an image in numerical terms. Radiometry is considered the base from
which to conduct this analysis.
Typically, converting the gray scale values to values of temperatures requires
either a calibration of individual cameras or field calibration data. The method
for calibrating images provided in this program is camera dependent because
temperature calibration data is collected through an advanced calibration
process at the factory and installed within the software program.
Thermal devices looks for a very specific file in its structure and automatically
uses it to perform calculations and produce temperature readings. If the device
cannot find the calibration file the user cannot perform temperature analysis. If
the file is corrupted temperature readings become skewed. Contact customer
service if there is an issue.
IF YOUR PACKAGE INCLUDES ADDITIONAL LENSES A SEPARATE CALIBRATION
FILE IS REQUIRED FOR EACH LENS. THESE FILES ARE STORED ON THE DEVICE.
CONTACT CUSTOMER SERVICE IS THERE IS AN ISSUE.
USERS SHOULD ENSURE THE ROI AND GLOBAL ENVIRONMENTAL
SETTINGS ARE SET APPROPRIATELY FOR THE SCENE AS THIS CAN IMPACT
TEMPERATURE READINGS.
9-3 Radiometry Correction
The accuracy of temperature conversion is also dependent on the physics of the
scene. These physical properties include humidity, emissivity and reflection of
the target, the transmission in the intervening atmosphere, and the background/
foreground temperature within the scene.
See
Section 8-17-1-3 ROI Regional
Environmental Parameters
and
Section 8-17-2 Global Environmental Parameters
to adjust the value setting of an ROI. .
9.
Radiometry
9-2 Detail Parameters
Name, Date, and Time information is automatically recorded and stored when
media is captured. GPS information is also captured if the feature is enabled.
See Section
8-11-3-3 View Media Information
to review media information.
